baber/WOPTO huggingface dataset:
Patent CA-2080472-A1 (CA)
Title: Infrared and near-infrared testing of blood constituents
Inventor: KNUDSON MARK B
IPC: A61B5/1459
Filed: 1991-04-12
Abstract: An apparatus and method are disclosed for determining a level of a constituent such as glucose in a body fluid such as blood. The apparatus and method utilize a light generator (22) for generating a testing light of known intensity with the testing light including a wavelength absorbable by the constituent being measured.  The light generator (22) also generates a reference light of known intensity having a wavelength not absorbable by the constituent being measured. The testing light and reference light are directed towards a fluid containing an unknown concentration of a constituent. A light detector (30) is provided for measuring the intensity of the testing light and reference light being spectrally modified by the fluid. A light path distance measurer (28) is provided for measuring a distance of a light path travelled by the testing light and reference light. A circuit (32) is provided for calculating a level of the constituent in the fluid in response to a reduction in intensity of the testing light and reference light and in response to the measured distance.
Patent CA-2080602-A1 (CA)
Title: Cylinder head for internal combustion engine and a process of operating same
Inventor: PLANTAN RONALD S
IPC: F01L1/28
Filed: 1992-10-15
Abstract: ABSTRACT      A cylinder head for an internal combustion engine of either a two-cycle operation or a four-cycle operation is disclosed.          The cylinder head includes an intake port, an exhaust part, a dual-function chamber, a poppet valve positioned within the dual-function chamber, and a flapper valve also positioned within the dual-function chamber, capable of sealing the intake port from the dual-function chamber, capable of sealing the exhaust port from the dual-function chamber.  If the  cylinder head is for a two-cycle engine, an injector may be positioned within the cylinder head so that fuel is injected either within the dual-function chamber, or directly injected within the combustion chamber. A process of operating the cylinder head in conjunction with an internal combustion engine is also disclosed.
Patent CA-2080704-A1 (CA)
Inventor: ROANE JAMES B
IPC: A61C5/04
Filed: 1992-10-16
Abstract: A prefilled disposable apparatus is provided for placing thermoplastic filling material including gutta percha in an endodontically prepared root canal. A hollow carrier has a distal end and a proximal end and has a cylindrical carrier bore defined therethrough. A plug of thermoplastic filling material is contained in the carrier bore. The carrier is made of thermally conducting material which can be heated to a temperature sufficient to soften the filling material. A displacing shaft is received in the proximal end of the carrier bore for displacing the softened thermoplastic filling material from the distal end of the carrier bore into the endodontically prepared root canal.
Patent CA-2084109-A1 (CA)
Title: Novel process for preparing 4-amino-5-hexanoic acid
Inventor: CASARA PATRICK
IPC: C07C229/00
Filed: 1992-11-30
Abstract: This invention relates to a process for preparing 4-amino-5-hexenoic acid, which comprises rearranging erythri-tol to 4-formyl-3-hydroxy-1-butene, converting the latter to ethyl 6-formyloxy-4-hexenoate and thence to ethyl 6-hydroxy-4-hexenoate, converting the latter to ethyl 6-trichloroacetimidoxy-4-hexenoate followed by rearrangement to its imidate ethyl-4-trichloroacetoamido-5-hexenoate which, by hydrolysis, is converted to the desired 4-amino-5-hexenoic acid, and optionally converting said acid to a pharmaceutically acceptable salt thereof. The invention also includes certain intermediate compounds. The 4-amino-5-hexenoic acid is useful in the treatment of epilepsy.
Patent CA-2086428-A1 (CA)
Title: Immunosuppressive compounds
Inventor: ARMISTEAD DAVID M
IPC: A61K31/445
Filed: 1991-07-02
Abstract: This invention relates to a novel class of immunosuppressive compounds having an affinity for the FK-506 binding protein (FKBP).  Once bound to this protein, the immunosuppressive compounds inhibit the prolyl peptidyl cis-trans isomerase (rotamase) activity of the FKBP and inhibit T cell activation. As such, the compounds of this invention can be used as immunosuppressive drugs to prevent or significantly reduce graft rejection in bone marrow and organ transplantations and for use in the treatment of a wide variety of autoimmune diseases in humans and other mammals.
Patent CA-2087172-A1 (CA)
Title: Bale wrapping machine
Inventor: COX ALFRED A
IPC: A01F15/07
Filed: 1992-05-12
Abstract: A bale wrapping machine for wrapping square and rectangular bales (24) of silage, hay, straw and the like with a plastics film (17). The machine comprises a turntable (6) which is rotatable about a vertical axis and which can support the bale (24) and rotate the bale (24) about the vertical axis. The machine has a conveyor floor (12) on the turntable (6) to turn the bale about a horizontal axis and a film dispensing system (16) for applying plastics material (17) to the bale (24) as the bale (24) is simultaneously turned about the vertical and horizontal axes to wrap the plastics material (17) around the bale (24). The machine has drive rollers (18) forwardly and rearwardly of the conveyor to apply an upward motion to a leading portion of the bale (24) and a downward motion to the bale (24) so that the bale (24) is turned about a horizontal axis of the bale (24). Alternatively, an inclined conveyor belt may be used instead of rollers. A lifting mechanism (70) for lifting rectangular bales onto the turntable is also described.
Patent CA-2087433-A1 (CA)
Inventor: PUHL LARRY C
IPC: H04L9/32
Filed: 1991-07-15
Abstract: Les systèmes de télécommunications cellulaires RF demandent souvent à un abonné (10) de maintenir un identificateur individualisé (19) ou un numéro de série (18) qui est transmis à une unité de communication de réseau fixe (20) afin de vérifier l'authenticité de l'abonné (10). Une méthode de chiffrement et de séquencement d'appels susceptible de diminuer la détection non autorisée de ces identificateurs (18, 19) est présentée. Elle assure l'efficacité d'itinérance en permettant la transmission, du système « d'origine » (20) au système « visité », de variables d'authentification pour des appels multiples et le stockage de ces variables par le système « visité » aux fins d'appels ultérieurs. Une méthode forçant l'unité mobile authentificatrice (10) à utiliser de l'information dont elle est seule à disposer est également présentée. De plus, une méthode permettant de maintenir l'intégrité du chiffrement pendant les transferts en enregistrant les événements pseudo-aléatoires qui se produisent entre une unité d'abonné (10) et toute unité de radiocommunication source (20) (p. ex. le nombre de transferts associés à l'abonné (10) pour une conversation donnée).
Patent CA-2089050-A1 (CA)
Title: Method and apparatus for making forming pins
Inventor: VAN ALLMAN DON T
IPC: B21G3/16
Filed: 1993-02-08
Abstract: A forming pin having a shank, a head, a point and a pair of like grooves on opposite sides of the shank is made by gripping an elongate wire in a position wherein an end of the wire is exposed, forming a head at the exposed end of the wire while gripped, advancing the wire by a predetermined distance and simultaneously forming the point and forming the grooves. The forming pin thus formed is severed from the remaining wire as the point and the grooves are formed.  A pair of dies are used, which are movable so as to pinch the wire therebetween, along with mechanisms for closing the dies.  The dies are configured similarly to define suitable forming edges.
Patent CA-2090927-A1 (CA)
Title: Method of improving the transmission of data packets having different priorities in accordance with the dqdb protocol
Inventor: JANSSEN SANDER J L M
IPC: H04L12/417
Filed: 1993-03-03
Abstract: ABSTRACT OF THE DISCLOSURE          Method of transmitting information having different priorities in accordance with the DQDB protocol, in which a head station (41, 42) of a transmission channel (1, 2) always assigns to every time slot a priority by means of a code in the access field and an end station (51, 52) of each transmission channel always stores periodically the number of access units (31, 32, 33) which transmit information having different priorities in time slots having a corresponding priority, and in which the ratio of the numbers of time slots which have different priorities and which are emitted by the head station is adjusted accordingly. Two different ways of storing the number of access units having different priorities are discussed. According to a first way, all the active access units report their priority periodically and according to a second way, all the nonactive access units report and access units having a higher priority which become active/inactive send start/stop codes.            FIG. 1
Patent CA-2091955-A1 (CA)
Title: Method and apparatus for around the curve sawing
Inventor: KNERR MICHAEL P
IPC: B27B31/00
Filed: 1993-03-18
Abstract: METHOD AND APPARATUS FOR AROUND THE CURVE SAWING      ABSTRACT OF THE DISCLOSURE    A method and apparatus for around the curve sawing is shown and described wherein a group of roller assemblies are positionable along a selected semicircular path having a point of tangency relative to lines of cut provided by an assembly of cutting blades whereby each roller assembly provides a transport path normal to the axes of rotation for each roller assembly and tangent to the selected  semicircular  path.    Upon  actuation  of  the  roller assemblies, as positioned along the selected semicircular path, the wood product, as captured between rollers of the roller assemblies, moves along the selected semicircular path and into the cutting device for cutting along concentric lines of cut.  The method and apparatus is particularly well suited for use with tree species having irregularly shaped protrusions and formations deviating from an idealized curved centerline of the log or cant.
Patent CA-2092787-A1 (CA)
Inventor: FIXARI BERNARD
IPC: C10G47/34
Filed: 1993-03-26
Abstract: Le procédé concerne l'hydroconversion en phase liquide de charges hydrocarbonéescontenant des fractions lourdes, et plus particulièrement leur conversion profonde. Selon l'invention, la charge est mise au contact d'un catalyseur dispersé en présence d'un additif polyaromatique. Le catalyseur est constitué par un sulfure d'un métal hydrogenant (tel que molybolène, nickel, cobalt) généré in situ à partir d'un précurseur. L'additif comporte au moins 3 cycles aromatiques, présente un point d'ébullition supérieur à 300 .degree.C et est ajouté à raison de 5 à 60 % en poids de la charge. Une synergie entre le catalyseur et l'additif permet de réduire la quantité de catalyseur et/ou d'améliorer la conversion et la qualité des produits.
Patent CA-2093450-A1 (CA)
Inventor: AMELINE IAN R
IPC: G06F9/40
Filed: 1993-04-06
Abstract: In the field of mixed 16-bit and 32-bit code, a method and mechanism  are  provided  to  implement  alterations  in  the dynamic portion of memory containing the data objects used by code in the 32-bit environment so that such data is accessible to code from the 16-bit environment.  Once the data objects in the stack are accesible to the 16-bit code, a  function  in  the  32-bit code  can  successfully  call  a function in 16-bit code.
Patent CA-2094516-A1 (CA)
Title: Plough
Inventor: TOPHAM PETER D T
IPC: A01B15/16
Filed: 1991-10-22
Abstract: A plough (22) having a landslide (26) and tilling mechanism (28), illustrated as a rotary disc (28) or soil inversion wheel, which is pivotable in relation to the landslide (26) between alternative positions providing for the left- and or right-hand formation of a furrow, depending upon the direction of ploughing, when the plough (22) is required to operate back and forth across a field.
Patent CA-2097068-A1 (CA)
Title: Pneumatic hammer
Inventor: KLEMM GUNTER W
IPC: E21B4/14
Filed: 1992-10-23
Abstract: A pneumatic hammer is provided with an adjusting means (37) dependent on the supply pressure, which adjusts the stroke length of the working piston (16). Thereby, the same pneumatic hammer may be operated both at low and high supply pressures. With high supply pressures, either the early ending of the acceleration phase or the early start of the compression phase or the shortening of the working cylinder shortens the stroke length. Thereby, the pneumatic hammer performs impacts with a substantially constant single-impact energy, regardless of the supply pressure. High supply pressures increase the impact frequency. This results in a considerably improved efficiency at a high drilling capacity, a reduced wear and a reduced risk of ruptures of the components of the hammer.
Patent CA-2097424-A1 (CA)
Title: Corticotropin releasing factor binding protein (crf-bp)
Inventor: POTTER ELLEN
IPC: C07K16/00
Filed: 1992-01-13
Abstract: A binding protein for Corticotropin Releasing Factor (CRF) is isolated from human plasma and partially sequenced. Using degenerate oligonucleotides based upon certain partial sequences of the isolated protein, the complete sequence for the 322-residue human precursor protein, termed CRF-BP, is deduced, which is believed to circulate in the plasma as an N-terminally shortened 298-residue mature protein. The homologous 322-residue sequence of the rat precursor protein is separately deduced. These proteins are produced recombinantly, and they are useful in the reduction of high ACTH levels in mammals caused by excess CRF and can be used to treat Cushing's Disease. They are also particularly useful in combating pituitary tumors which produce CRF and in modulating the various actions of CRF on the pituitary, the brain, the immune system and gastrointestinal blood flow. The proteins can also be used to raise blood pressure and combat hypotension in this manner.  Antibodies to the proteins may be employed in diagnostic assays and in purification of the protein; they are also useful to counteract the biological effect of CRF-BPs.
Patent CA-2100031-A1 (CA)
Title: Smoking compositions containing an alpha-alkylcinnamaldehyde-release additive
Inventor: CHAN W GEOFFREY
IPC: A24B3/12
Filed: 1993-07-07
Abstract: This invention provides smoking compositions which contain a novel .beta.-hydroxycarboxylate flavorant release additive of the formula (See Formula I) where R1 is a C4-C7 alkyl substituent, R2 is a C1-C4 alkyl substituent, and R3 is hydrogen or an alkali metal or alkaline earth metal atom. Under cigarette smoking conditions, a combustible filler and/or paper wrapper additive such as calcium bis (2,2-diethyl-3-hydroxy-4-phenylmethylenedecanoate) pyrolyzes and releases .alpha.-hexyl-cinnamaldehyde as a volatile flavorant component of the cigarette smoke.
Patent CA-2103048-A1 (CA)
Title: Aluminum nitride densification with minimal grain growth
Inventor: CHIAO YI-HUNG
IPC: C04B/
Filed: 1992-07-08
Abstract: A method is disclosed of forming a dense, high thermal conductivity aluminum nitride article. A powder compact includes aluminum nitride powder and a densifying composition. The densifying composition includes YF3, Al2O3 and either Y2O3 or CaF2.  The powder compact is heated to a temperature of less than 1650 ·C, in a suitable atmosphere and for a time sufficient, to cause densification of the powder compact without a significant increase of the grain size of the powder compact, thereby forming a dense, high thermal conductivity aluminum nitride article.
Patent CA-2104240-A1 (CA)
Title: Spring used with complementary spacer
Inventor: PLEVA WALTER F
IPC: F16F1/32
Filed: 1993-08-17
Abstract: ABSTRACT OF THE DISCLOSURE    A generally flat, flexible, resilient, double faced spring used in combination with a generally flat spacer with the spring having the same number of uniform protrusions on each of its flat surfaces, the protrusions on each surface being equidistant from each other.  The protrusions have spherical tips which function as multiple fulcrums, a spherical tip protrusion on one side of the spring surface being precisely half way between the spherical protrusion on the other surface such that no protrusion on one surface is exactly opposite a protrusion on the other.  The essentially flat spacer is equipped with protrusion receiving recesses spaced to coincide with the locations of the protrusions on the adjacent spring.  The tip of each protrusion of a spring is in alignment with the respective spacer recess so that when multi-protrusion springs are combined with a spacer, they are prevented by the recesses from laterally shifting or moving into a rotational position.
Patent CA-2109577-A1 (CA)
Title: Device for opening, in particular, scissor-type jack mechanisms
Inventor: VESELY FRANTISEK
IPC: B66F3/22
Filed: 1992-05-21
Abstract: Abstract A device for opening in particular scissor-type jack mechanisms with paired cross-bars the device having a chamber /8/ of variable volume connected to fluid inlet and outlet provided by end plates /16,17/ to which two cover plates /6,7/ are fixed the first cover plate /6/ being provided by two flanges /13,13'/ disposed on the opposite sides of the cover plate /6/ and extending to a second cover plate /7/ and connecting for rotatable motion the first cover plate to the cross-bars /1,1'/.  The second cover plate /7/ is provided by two flanges /14,14'/ the distance between the two flanges /14,14/ being smaller than the distance between the flanges /13,13/ of the oposite first cover plate /6/ and the flanges /13,13/ of the first cover plate /6/ are coaxially connected for rotatable motion to the inside surface of the outer cross-bars /1,1/ while the flanges /14,14/ of the second cover plate /7/ are coaxially connected for rotatable motion to the inside surface of the inside cross-bars /2,2'/, whereby the axes of the connection means for rotatable motion /9,9',11,11'/ coupling the two cover plates /6,7/ to the cross-bars /1,1',2,2'/ cut the line /18/ joining the centroids of the two end plates /16,17/.
Patent CA-2110883-A1 (CA)
Title: A method of setting an inaudible alert mode in a radio pager
Inventor: TSUNODA KAZUYUKI
IPC: H04W88/02
Filed: 1993-12-07
Abstract: In order to change a subscriber alert mode of a radio pager from an audible alert mode to an inaudible alert mode, a normally open function switch is depressed while the radio pager operates in the audible alert mode.      The function switch is subsequently depressed. Following this, a timer is set to count up to a predetermined time period. A pager display exhibits a silent time duration for which the pager will operate in the inaudible alert mode if the timer counts up the predetermined time period. Subsequently, another timer is set to count up to a predetermined time period if the function switch is released. Thereafter, if the second timer counts up the second predetermined time period and if the function switch remains released, the radio pager is set to operate in the inaudible alert mode for the set silent time duration.
Patent CA-2111024-A1 (CA)
Inventor: HAGEN DONALD F
IPC: G01N31/22
Filed: 1993-12-09
Abstract: ABSTRACT OF THE DISCLOSURE composite reactive articles are useful for quantifying cyanide ions in solution.  The composite reactive articles can he porous reactive supports comprising an inert substrate having immobilized thereon finely divided gold.  The porous reactive supports can be particulate, porous fibrous membranes, or solution-cast membranes.  Alternatively, the composite reactive articles can comprise porous fibrous membranes having enmeshed therein the aforementioned porous supports which can be in particulate or fibrous forms.     The method for quantifying cyanide ions in solution comprising the steps of contacting and passing a solution containing cyanide ions through a reactive support comprising a porous, high surface area, inert substrate on which is immobilized finely divided elemental gold at a controlled rate to provide for a time to provide sufficient contact time for the gold and cyanide ions to react and provide a soluble gold cyanide complex, recovering the effluent comprising said gold cyanide complex, and determining the quantity of cyanide present in the gold cyanide complex.
Patent CA-2113498-A1 (CA)
Title: Safety apparatus for linemen
Inventor: HUMPHREY ROBERT D
IPC: A62B35/00
Filed: 1994-01-14
Abstract: A  safety  apparatus  for  linemen  is  described  which includes an arcuate plate having an outer radiused surface, an inner radiused surface, a first end and a second end.   The inner  radiused  surface  is  adapted  to  accommodate  the circumference of a pole.   Means for detachably securing the arcuate plate to the circumference of a pole extends between the first end and the second end of the arcuate plate.   A primary support member is provided having a first end and a second end.  The first end is attached to the outer radiused surface of the arcuate plate and the  second end extends radially from the outer radiused surface.  An attachment track extends radially from the outer radiused surface of the arcuate plate.  The attachment track is connected to the primary member adjacent the second end, such that the attachment track is reinforced by the primary support member and the primary support member is reinforced by the attachment track.  A fall-arrest device and such tools and equipment as a lineman may require are attached to the attachment track.
Patent CA-2115803-A1 (CA)
Title: Device and process for injecting an additive in the fuel tank of a motor vehicle
Inventor: LEMAIRE JACQUES
IPC: F02M25/00
Filed: 1994-02-16
Abstract: The invention relates to the automatic injection of an additive into the fuel tank of a motor vehicle, from an on-board additive tank. According to the invention, the quantity of additive to be withdrawn from the additive tank (101) is calculated using an on-board computation unit (102), and the quantity of additive thus calculated is injected by pulsed spraying, this spraying being carried out directly into the liquid bulk of fuel. This pulsed spraying is preferably carried out by controlling a piston positive-displacement pump (112), with a number of piston strokes which is automatically determined as a function of the quantity of additive to be withdrawn.   <IMAGE>
Patent CA-2116704-A1 (CA)
Title: Levelling device
Inventor: GUITOR JEAN
IPC: G01C9/14
Filed: 1994-03-01
Abstract: This invention relates to a self-contained and therefore portable battery powered levelling device. The device has a housing with at least one planar surface for placement on the surface to be levelled. The device contains a pendulum having an electrically conductive shaft and at least a set of four electrical contacts mutually arranged around and spaced from the pendulum's conductive shaft. Each of the electrical contacts is connected to a indicator light which is illuminated when the shaft makes electrical contact with one or more of the spaced contacts, thus providing an indication of an off-levelcondition. Furthermore, the device includes means for incrementally adjusting the distance between the electrical or conductive contacts and the conductive shaft of pendulum. The device also includes an audible indicator, such as a buzzer which may be selectively enabled to indicate an on-level condition. In a preferred embodiment of the invention, the levelling device includes a pair ofgravitational pendulums each associated with a pair of adjustable contacts arranged on either side of their respective pendulum. The two pendulums define a horizontal plane which is parallel to the base of the device such that an indication of a level base (or top) reflects the level condition.